Bubble Augmented Waterjet Propulsion : Numerical and Experimental Studies
Bubble Augmented Waterjet Propulsion : Numerical and Experimental Studies
复制标题
气泡增强喷水推进器：数值和实验研究
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
G. Chahine
中科院分区：
文献类型：
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作者：
Xiongjun Wu;Jin;C. Hsiao;G. Chahine
在本文中，我们提出了我们的努力，以测试实验和数值模拟的气泡增强喷气推进的概念。数值模型是基于一个双向耦合的欧拉描述的流场和拉格朗日跟踪气泡的表面平均压力（SAP）模型。数值计算结果与喷管实验结果进行了比较。利用所开发的数值计算程序，设计并优化了一个用于气泡增强推进的半三维喷管，最终得到了一个净推力随气泡喷射率增加而增加的设计方案。数值代码可以是一个强大的工具，一般的两相流喷嘴的设计，在目前的数值和实验研究表明。
In this paper, we present our efforts to test experimentally and numerically the concept of bubble augmented jet propulsion. The numerical model is based on a two-way coupling between an Eulerian description of the flow field and a Lagrangian tracking of bubbles using the Surface Averaged Pressure (SAP) model. The numerical results compares favorably with nozzle experiments. A half 3-D nozzle for bubble augmented propulsion was designed and optimized using the developed numerical code, which in the end yielded a design that produces net thrust increase with increased bubble injection rate. The numerical code can be a robust tool for the general two-phase flow nozzle design as demonstrated in the present numerical and experimental studies.